Answer:
<u>~Senpi boi here~</u>
Step-by-step explanation:
Multiply all terms by x and cancel:
x+2x+1=1x
3x+1=x(Simplify both sides of the equation)
3x+1−x=x−x(Subtract x from both sides)
2x+1=0
2x+1−1=0−1(Subtract 1 from both sides)
2x=−1
2x
2
=
−1
2
(Divide both sides by 2)
x=
−1
2
Check answers. (Plug them in to make sure they work.)
x=
−1
2
(Works in original equation)
<u>Answer:</u>
<u>x= −1/2</u>
<u>(</u>Hope this helps!)
Answer:
30
Step-by-step explanation:
Did you just do this for fun?
Either way have a good rest of your day!
Answer: 11/30
Step-by-step explanation:
11 girls out of 30 kids. 11/30 cannot be simplified.
Using the normal distribution, it is found that the correct option is:
In a <em>normal distribution</em> with mean
and standard deviation
, the z-score of a measure X is given by:
- It measures how many standard deviations the measure is from the mean.
In this problem:
- The mean on the Wechsler Scale is of 100, hence
.
- The standard deviation is of 17, hence
.
- Brianna had an score of 117, hence

Then:



Hence, the option d is correct.
To learn more about the normal distribution, you can check brainly.com/question/24663213
It would be 2 silly because 3-3=0 and 0 x 6=0 and 0 + 2 = 2 so that is the answer 2